This function enables the user to fit the estimated blank outline by using a rectangle or trapezoid. Dimension of rectangle or trapezoid is displayed upon completion of blank fitting operation. The dialog box is illustrated in Figure 7.5.4.
Figure 7.5.4 The Rectangular Fitting dialog box
There are two types of BLANK FITTING: AUTO and MANUAL. If AUTO FIT is selected, the Angle (rotation) and Area (rectangular blank) are automatically determined by the program. An example of rectangular blank outline created using AUTO and MANUAL FIT is illustrated in Figure 7.5.5.
(a) Auto Fit (b) Manual Fit
Figure 7.5.5 Rectangular blank outline created by Rectangular Fit
To create the rectangular blank outline:
· Select a type of RECTANGULAR FIT (AUTO or MANUAL)
· If MANUAL FIT is toggled, click on DEFINE ORIENTATION to define blank orientation.
- Click and hold the left mouse button at the cross hair.
- Move the mouse to rotate the rectangular outline.
- Stop moving the mouse and release the left mouse button after obtaining the desired orientation.
· Select the estimated blank outline by clicking on the SELECT LINE button. Alternatively, the user can select the blank elements generated by BLANK GENERATION.
· Click APPLY button.
· When generating the rectangular outline, the length and width of the rectangle are marked.
TYPE
RECTANGLE
If this type of blank fitting is chosen, the program fits the blank using a rectangle illustrated in Figure 7.5.6
Figure 7.5.6 Rectangle Fit
TRAPEZOID FIT
If this type of blank fitting is chosen, the program fits the blank using a trapezoid illustrated in Figure 7.5.7.
Figure 7.5.7 Trapezoid Fit
TRAPEZOID IN RECTANGLE
If this type of blank fitting is chosen, the program fits the blank using a Trapezoid in a smallest rectangle illustrated in Figure 7.5.8. The difference between TRAPEZOID IN RECTANGLE and TRAPEZOID is insignificant. However, the TRAPEZOID IN RECTANGLE option helps to avoid the shape angle for some specific examples.
Figure 7.5.8 Trapezoid in Rectangle Fit